Mill-building roof-system support and crane-column.



W. S. HUTCHINSON.

MILL BUlLDiNG ROOF SYSTEM SUPPORT AND CRANE COLUMN.

APPLICATION FILED OCT. 5. 19!].

1,291,529, liatented Jam. 14, 1919.

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WITNESSES V2541 ,44 ZZJVLWM/ INVENTOR WILLIAM S. HUTCHINSON, OF BETHLEHEM, PENNSYLVANIA.

MILL-BUILDING ROOFFSYSTEM SUPPORT AND CRANE-COLUMN.

Application filed October, 5, 1917.

have made a new and useful Invention in Mill-Building Roof-System Supports and Crane-Columns, of whichrthe following is a specification.

This invention relates to mill buildings and more particularly to roof-system supports and crane columns for such buildings.

An object of this invention is to provide a combined crane column and roof-system support that is economical from every stand point, one which requires a minimum of material for maximum strength and maximum crane clearance; a combined column of simple design and detail requiring a minimum of labor in fabrication and in which plates are eliminated thereby making the same relatively cheap.

A further object is to provide a combined crane column and roof-system support having the above characteristics and in which the crane load and the roof load tend to balance one another and are applied in such a way that the column is substantially concentrically loaded.

These, as well as other objects which will readily appear to those skilled in this particular art, I attain in the combined column described in the specification and illustrated in the drawings accompanying the same and forming part of this application.

It will be readily understood that combined columns of this type require a minimum of floor space and that due to the construction, an H column or a large G column may be used for the main or crane columns since these sections have large radii of gyration and section moduli in both directions thus making a stronger building with less bracing than is now customary.

It will be seen that this combined column has great powers of resistance to all horizontal and vertical shearing and bending stresses caused by vibration or by any lateral forces.

In the drawings, Figure 1 is a view in side elevation of a combined crane column and roof-system support embodying this invention and Fig. 2 is a front elevation of a portion of the same, the main truss of the roof system being omitted.

In carrying out this invention the crane Specification of Letters Patent.

Patented Jan. 14:, 1919.

Serial No. 194,875.

column 3 made up of rolled steel shapes preferably of H section (under some circumstances a large 0 section may be used) has an auxiliary column (preferably an H section) 4: riveted or otherwise secured thereto near its top and at one side thereof, as at 5. This auxiliary column or ro0f-system support is of smaller section than the main or crane column and to it the main truss 6 of the roof-system is riveted or otherwise secured.

As many combined columns as are necessary will be employed in the construction of a mill building and each crane column at its top will be provided with a pad 7 upon which crane beams S for the crane rails are fastened. The usual lcanto trusses 9 may be utilized and the crane columns braced to one another by suitable braces 10.

It will be seen that the crane and roof columns fastened together as described form a combined column in which the roof load and the crane load which are applied to opposite sides tend to equalize or balance one another, and that both loads are applied closer to the center of the main column than in common types of columns. It will also be seen that with a given crane clearance a minimum amount of material is required.

Having thus described my invention what I claim is 1. In a mill building structure, crane columns formed of rolled shapes, roof columns formed of rolled shapes of smaller section than said crane columns and fastened to the sides of said crane columns near their tops, roof trusses secured to said roof columns, and crane beams carried by said crane columns on opposite sides thereof from said roof columns.-

2. A combined crane and roof column comprising a main column, an auxiliary column secured to one side of said main column near its top, in combination with a roof system secured to said auxiliary column and a crane beam carried by said main column on the opposite side thereof from said auxiliary column.

3. The combination with a crane column formed entirely of rolled shapes, of a roof column formed entirely of rolled shapes of smaller section secured to one side of said crane column at its top, and a crane beam carried by said crane column on the opposite side from said roof column, whereby the roof and crane loads tend to balance one another.

4. The combination With a crane column In testimony whereof I have hereunto subformed of a rolled H section, of a roof scribed my name this first day of October, column formed of a smaller rolled H section 1917.

secured to one side of said crane column at WM. S. HUTGHINSON. its top, and a crane beam carried by said Witnesses:

crane column on the opposite side from said CHAS. WILLIAMS,

roof column. E. B. MOLTER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

